Bucket guiding attachment for traversing hoists



March 1, 1932. R. c. coo 1,848,075

BUCKET GUIDING ATTACHMENT FOR TRAVERSING HOISTS Filed Oct. 12, 1928 2 Sheets-Sheet l INVENTOR ATTORNEYS Y Rum;

March 1, 1932. R. c. COOK 1,848,075

BUCKET GUIDING ATTACHMENT FOR TRAVERSING HOISTS Filed Oct. 12, 1928 2 Sheets-Sheet 2 H QHEQ f I ATTORNEY? PatentediMar. 1, 1932 I cam STATES:-

RICHARD 0. 000190? AURORA, ILLINOIS, jAs sI Gn'oniroj'eirnoanwoon ooairAnir; on

, ,nunsolv, new YORK, A connona'r ou or nnw You};

:eUoKE'r GUIDING AT ACHMENT ron'rnAvnns-Iuer z-rors'rs Applicationfiled October 12; 1928. Serial n6. 812,150.

This invention relatesto traversing hoists of the type employing flexibly suspended.

l dump buckets such as are used for handling coal orother more or less fluent mater als and aims to'provide an improved bucket guiding attachment for the trolley adaptedto prevent swinging or twisting movementsofthe bucket when it approaches the upper limit of its 1 Fi .1 is elevatiompartly in section,

showing a traversing hoist; installationfor, handling coal and the like, havingtheim-f' proved bucket gu1d1ngattachmentassociated.

therewith; I I I i Fig. 2 isan end elevation, on an enlarged scale, of the trolley shown in Fig. 1; and Fig. 3 is a side elevation of the trolley on a somewhat smaller scale than Fig. 2.

. As explained in the aforesaid Towne application, flexibly suspended traversinghoist buckets are subject to swinging and twisting movements which might result in consideris being hoisted and when the trolley is started or stopped or its speed is changed. Th s invention aims to provide an improved bucket guide associated with the trolleyairranged to overcome such movements when the bucket approaches the upper limit of itshoisting movement and to guide the bucket to its proper position with respectto the trolleyL Referring to Fig. 1, the preferred form of the guiding attachment'is shown as applied to a traversing hoist wherein a monorail trolley 10 is employed. Fromthetrclle'y is flexibly suspended a dump bucket 11, which is provided with rollers .12 adapted to be guided on an inclinedftrack' lS into a pit where the bucket isadapted to be filled means of agate 14011 a receiving bin 15,

the pit installation being substantially the same as that shown and described in the patf one illustrativeembodiment of. the invention able damage, .and usually cause a loss of time. Such movements takeplace whenthe bucket ent issued June 9, 1931, tolG ifi'ord-Wood Company,No. 1,808,972. The bin 15 is adapt- Ied'to be filled by arailroacl car 16 or the like.

The, operation of the installation is adapted to be controlled byjsuitable control mecha i nism located 111 a power house 17,, the arrangement being such that the bucket is lowered I into 'the pit; then elevatedonjtheinclined tracks 13 to a position below the trolley; and

then hoisted vertically so'that it ca-nbe carried by the trolley over any one of a series of storage bins 18 where: the material istolbe' stored.

Referring now to the trolley and'xbucket installation, the bucketll is suspended in the] bight ofa cable 19, trainedover a pair of sheaves or'pulleys 20 on the trolley and around a hoisting block 210141 the bail 22 of the, bucket, the bail beingpr eferably carried normally in the; plane of the two sheaves 20,

the arrangement being such-thatasingle cable may be hauled into hoist the bucket-above :the series of bins 18 over which.. the'trolley travels... The preferred construction .of the bucket is described in-Patent No ..1,741,123

of A. 0, Bennett, being adapted to bedumped automatically upon striking against thei'malte- I rial in one of the bins.

Herein, the trolley pair of spaced bufferv plates 23 7 arranged at the opposite ends thereof, each of the buffers h'avingIcompression springs 2 lconvenientlyl- 10 is shown as having a like those shown in the aforesaid Towne application.

To afi'ord ample guiding surfaces to cooperate with the bucket when it isbeing hoisted, a substantially ,veshaped frame' 25 is suitably secured to the side of each buffer plate 23...- Herein, each framecomprises a plate 26 having a' substantially-V-shaped notch riveted to structural members 27 on vthe plate and is arranged onthe inside'thereof asshown in Fig.3. At the edges, of the V-shaped notch there are showna pair of structural angles28, eachhavlng one fiangef rivetedor-otherwise secured to the plate to present a relatively wide and rigid: bearing surfacefor the bucket bail22. 1: As shown in Figs- 1 and 2, the lower ends "of'the'. angle lmemb'ers preferably extend. below. the lower 3. In combination with a traversinghoist ends of the plates 26 and are bent or curved outwardly so that when the bucket is being hoisted and has a relatively wide pendulumlike swinging movement, the bail may engage either of the curved ends of hooks and be guided thereby.

From the foregoing description, it will be seen that the opposite ends of the cross member of the bail 22 will be guided by the spaced guiding members and will cause the bail to strike the buffer plates substantially centrally thereof or in the plane oi the sheaves, so that the bucket cannot swing in the plane of its traversing movement or the traversing movement of the trolley. This is very important because, if the bail should lie in a plane at a substantial angle to the longitudi- 11211 Center line of the trolley, the bucket would swing when the trolley started or stopped or its speed is changed. Moreover, the V-shape'd guides will quickly stop any twisting movements of the bucket during the final stages of the hoisting movement. This is of importance because the twisting and swinging movements would otherwise cause a loss of time while the operator endeavored to straighten the bucket with respect to the trolley.

lln viewrof the explanation of the advantages of a bucket guide and stabilizer described in the aforesaid Towns application, it is not believed to be necessary further to elaborate on them in this application.

Obviously, the present invention is not restricted to the particular embodiment thereof herein shown and described.

What is claimed is v 1. In combination with a traversing hoist I trolley and a bucket flexibly supported from.

the trolley, a pair of sheaves on the opposite ends of the traversing hoist trolley; a cable over said sheaves presenting a bight portion suspending said bucket; a bail on the bucket; and spaced, if-shaped guiding frames on the trolley below the sheaves for co-operation with said bail and constructed and arranged to guide it in substantially the low the trolley and constructed and arranged to receive the bail of the bucket, and con: tact therewith at spaced points, whenthe bucket is at and near its uppermost position, to check oscillations of the bucket in a plane perpendicular to the vertical plane of the monorailand to check oscillations about a vertical axis passing throughthe bucket.

having a trolley carrying a suspended dump bucket, a bail on the bucket; spaced bufiers carried by the opposite ends of the hoist trolley; and depending substantially V-shaped guide members carried by said buffers and cooperating. with. said bail.

t. In combination with a traversing hoist, carrymg a suspended dump bucket, a ball .on the dump bucket; a hoisting block carried by the bail a pair of sheaves on the hoist trolley over which the bucket suspension cable is carried; buffer plates mounted on the opposite ends of the hoist trolley; and depending, substantially inverted V-shaped bail guiding members associated with said butter plates and having outwardly curved lower ends to engage the bucket bail initially to check pendulum swinging movement of the bucket and guide it so that the bail finally lies in a vertical plane extending along the direction of travel of the trolley.

5. In combination with a traversing hoist initial guiding surfaces for the bucket during the latter part of its hoisting movement. In testimony, that I clann the foregoing as my own, I havehereto affixed my signature.

RICHARD C. COOK. 

